22 results about "Hydromechanical coupling" patented technology

A 3-way fluid coupling for an information processing device having a primary liquid cooling loop and an expansion space. When no expansion device is present, the coupling directs liquid down a bypass path of the primarily loop. When an expansion device is present in the expansion space, the coupling directs liquid to flow through an expansion liquid cooling loop of the expansion device while substantially blocking liquid from flowing through the bypass path. The 3-way fluid coupling has a body and a poppet in the body. The poppet moves between a first position, in which first and second ports of the body are open while a third port is closed, thus directing liquid along the bypass path, and a second position in which the first and third ports are open and the second port is blocked, thus directing liquid to the expansion loop and substantially blocking the bypass path.

The invention relates to the field of nuclear power plant equipment, in particular to a method for reducing the temperature of a fifth bearing bush of a hydraulic coupler, which comprises the following steps of: 1, measuring and adjusting the rising degree of a motor journal; 1.1, measuring the rising degrees of bearing bush journals at the two ends of the motor; 1.2, adjusting the shaft neck raising degrees of the bearing bushes at the two ends of the motor to enable the shaft neck raising degrees to be the same and opposite in direction; 2, opening centering of the motor coupling and the hydraulic coupler coupling is adjusted; step 3, adjusting a bush gap of a fifth bearing bush of the hydraulic coupler; and fourthly, the diameter of a fifth bearing bush oil inlet hole plate of the hydraulic coupler is increased. According to the method, the purpose of reducing the load of the fifth bearing bush of the hydraulic coupler can be achieved through shaft system raising degree adjustment and wheel center optimization, and the heating value of the fifth bearing bush can be reduced; the oil inlet quantity of the fifth bearing bush is increased by increasing the diameter of an oil inlet plate of the fifth bearing bush, so that the fifth bearing bush is fully cooled; the minimum oil film thickness of the fifth bearing bush can be effectively improved by increasing the bush gap of the fifth bearing bush, so that the operation safety of the fifth bearing bush is improved.

The invention relates to the technical field of power transmission and discloses a power transmission device and method.The power transmission device comprises a hydraulic coupling assembly, a pressure relief assembly and an interruption assembly, the hydraulic coupling assembly comprises a box body, an input turbine, an output turbine, an input shaft and an output shaft, coupling liquid is contained in the box body, and the input turbine and the output turbine are oppositely arranged in the box body; the input turbine is coaxially connected with the input shaft, the input shaft is connected with the power source, the output turbine is coaxially connected with the output shaft, and the coupling liquid is used for buffering vibration in the power transmission process; the pressure relief assembly comprises a pressure relief pipe, a first control valve and an oil storage tank, the oil storage tank is connected with the box body through the pressure relief pipe, the first control valve is arranged on the pressure relief pipe, and the pressure relief pipe and the first control valve are used for discharging high-pressure coupling liquid caused by load impact in the box body; the interruption assembly is arranged between the input shaft and the power source, vibration and transient impact in power transmission can be effectively buffered, power transmission of the input shaft and the power source can be cut off in time, and power can be unloaded in time.

Some fluid coupling devices described herein are configured as non-spill fluid couplings. In addition, some embodiments described in this document relate to fluid coupling devices and fluid coupling systems that are constructed in a compact configuration.

The application discloses a flexible fluid pump based on a three-dimensional origami structure; the flexible fluid pump comprises one or a plurality of pump liquid units connected in series. The pump liquid unit comprises a pump body shell, an origami pump body, a bellows, a one-way valve, a first joint and a second joint which are arranged in the pump body shell. The origami pump body comprises a pump cover, a flexible side wall and a pump bottom. The flexible side wall can be folded; the inner side of the folded flexible side wall is attached to the pump cover and the pump bottom. The pump cover, the flexible side wall and the pump bottom are all three-layer structures; the three-layer structure comprises a backing layer, an electrode layer and an insulating layer which are arranged in sequence; the application adopts a novel electro-hydraulic-force coupling mechanism, increases the electric field force through the coupling effect of the dielectric liquid and the dynamic electric field, drives the suction of the upper and lower electrodes, extrudes the dielectric liquid, and simultaneously combines the magnetic force driving to improve the response time of the pumped liquid.

The utility model provides a hydraulic coupler with a good temperature control effect, which relates to the technical field of couplings and comprises a pump wheel shell, a driving shaft is arranged at the center of the pump wheel shell, and the driving shaft is rotatably connected with the pump wheel shell through a bearing; a threaded sleeve is arranged on the driving shaft and located on the rear side of the pump wheel shell. The floating net rack can be driven to be adjusted front and back in the rear auxiliary cavity through meshing transmission of the reciprocating lead screw and the convex shaft and mutual cooperation of the limiting sliding block and the limiting sliding groove, then the fluidity of circulating oil in the rear auxiliary cavity can be effectively improved, and the better temperature control effect is achieved. The problems that when an existing hydraulic coupler is used, in the long-time running process of a driving shaft, resonance is likely to be generated between the driving shaft and a driven shaft, the running stability of the driving shaft is reduced, flowing heat dissipation of internal hydraulic oil is not smooth, the oil temperature is too high, and the heat dissipation effect of the hydraulic coupler is affected are solved.

This invention relates to a disassembly device for a hydraulic coupling, comprising a support frame, a connecting rod, an electric hammer, and a pressing assembly. The connecting rod is rotatably mounted on the support frame for connecting the hydraulic coupling. The electric hammer is slidably mounted on the support frame, with its sliding direction aligned with the axial direction of the connecting rod. The drive end of the electric hammer is connected to the support frame via the pressing assembly. During disassembly, the electric hammer is pushed away from the hydraulic coupling, causing the high-frequency impact generated by the hammer along the pushing direction to be transmitted to the support frame via the pressing assembly. The support frame then transmits this impact to the hydraulic coupling via the connecting rod, thereby moving the hydraulic coupling and achieving disassembly. Its advantages include rapid disassembly of the hydraulic coupling while significantly reducing the risk of equipment damage.

Some fluid coupling devices described herein are configured as non-spill fluid couplings. In addition, some embodiments described in this document relate to fluid coupling devices and fluid coupling systems that are constructed in a compact configuration.

The application relates to the technical field of hydraulic couplers, in particular to a speed-regulating method and device for a speed-regulating hydraulic coupler. The method comprises the following steps: acquiring real-time oil level data in a hydraulic coupling cavity of the coupler, setting a predicted oil leakage amount according to the real-time oil level data, setting a real-time adjusting valve opening degree and an input shaft real-time rotating speed according to the predicted oil leakage amount; acquiring real-time oil leakage amount data, correcting the real-time adjusting valve opening degree according to the difference between the real-time oil leakage amount and the predicted oil leakage amount; acquiring real-time oil temperature data in the hydraulic coupling cavity of the coupler, correcting the input shaft real-time rotating speed according to the real-time oil temperature data and judging whether a warning instruction is generated according to the real-time oil temperature data. By additionally arranging an oil return part, the real-time oil leakage amount is controlled by using an adjusting valve arranged on an oil return pipe, the problem that the oil leakage amount is increased due to the fact that the gap between a spoon pipe and a spoon pipe sleeve is increased is avoided, and the stable and accurate speed regulation of the speed-regulating hydraulic coupler is ensured.

Some fluid coupling devices described herein are configured as non-spill fluid couplings. In addition, some embodiments described in this document relate to fluid coupling devices and fluid coupling systems that are constructed in a compact configuration.

The invention relates to a method for starting up and operating a belt conveyor system (1), wherein the following method steps are carried out: • Measurement of a reference speed (8) on a first drive group (2.1) • Measurement of the rotational speed of another drive group (2.2) • Providing a characteristic curve (10) in the control system (3) for the relationship between speed (9) and torque (11) for the drive groups (2, 2.2) • Controlling the speed of at least one drive group (2, 2.2) by adjusting the fill level of the hydrodynamic coupling (5) by means of the filling device (6), wherein the filling device (6) comprises a bidirectional pump (6.1), wherein the fill level is set taking into account the characteristic curve (10), the measured speed (9) of the drive groups (2, 2.1, 2.2). Furthermore, the invention relates to a belt conveyor system suitable for carrying out the described method.

The present invention discloses a coaxial feedwater pump stop control method and device, which relate to the technical field of feedwater pump stop control. The method comprises: obtaining parameters of a steam turbine coaxial drive feedwater pump system in real time; when the coaxial feedwater pump fails or needs to be shut down for maintenance, controlling the speed of the coaxial feedwater pump to decrease; when the speed of the coaxial feedwater pump decreases to less than a first preset speed, calling and executing an electric feedwater pump parallel pump program; when the electric feedwater pump parallel pump program is completed, controlling the speed of the coaxial feedwater pump to decrease to zero by controlling a hydraulic coupling and a disc brake in sequence, thereby providing a more accurate and reasonable coaxial feedwater pump stop control logic, improving the degree of automation of equipment operation while ensuring the safe operation of a steam turbine coaxial drive feedwater pump system that applies the steam turbine coaxial drive feedwater pump technology, reducing manual workload, and avoiding errors that may be caused by manual judgment of equipment failures.

The utility model discloses an external oil pump device of a hydraulic coupler, and belongs to the technical field of thermal power generation equipment. In order to solve the problems that a single auxiliary oil pump of an existing hydraulic coupler is prone to failing in long-term operation, and the standby safety of a generator set is affected, the redundant design is achieved by connecting a main oil pump and a standby oil pump in parallel, oil inlets of the main oil pump and the standby oil pump are connected into an ingress pipe in parallel, and oil outlets of the main oil pump and the standby oil pump are connected with an oil inlet of the hydraulic coupler through an eduction pipe in parallel; each oil way is provided with a switching valve to support on-line switching. The device is further provided with a one-way valve to prevent backflow, a pressure sensor monitors oil pressure, a flow regulating valve regulates oil quantity, and maintenance convenience is improved through a quick-release flange and a maintenance observation window. The double pumps are standby for each other, so that the hydraulic coupler can still maintain lubricating oil pressure when a single oil pump fails, standby safety of a generator set is guaranteed, online maintenance of the failed oil pump is supported, and system reliability and operation and maintenance efficiency are remarkably improved.

The utility model belongs to the technical field of hydraulic coupler disassembly and assembly devices, and particularly relates to a novel hydraulic coupler disassembly and assembly auxiliary device which comprises a connecting flange, an auxiliary pipe and a chassis. When the novel hydraulic coupler disassembly and assembly auxiliary device is used, firstly, the connecting flange is fixedly installed between two flanges of a coupling of the hydraulic coupler through bolts, the auxiliary pipe is arranged on the outer side of a shaft in the center of the flanges of the coupling of the hydraulic coupler in a sleeved mode, and meanwhile the first preformed hole is formed downwards. By using the device, not only can the disassembly of the hydraulic coupler be realized, but also the damage to the shell of the hydraulic coupler can be avoided, and in addition, the separation mode of the hydraulic coupler and the motor shaft can be selected according to actual requirements, so that the device can adapt to different working environments.

The application provides a fault prediction circuit, a method and a storage medium, relates to the field of electromechanical control, and the fault prediction circuit is applied to a hydraulic coupling including an input shaft and an output shaft; the circuit comprises a presetting module, a counting module and a feedback module; the counting module is connected to the presetting module and the feedback module; the presetting module is used for setting a preset speed difference; the counting module is used for counting the input shaft and the output shaft based on the preset speed difference to obtain a counting result; and the feedback module is used for controlling the counting module according to the counting result and performing fault prediction. The fault prediction circuit provided by the embodiment of the application is applied to the fault prediction of the hydraulic coupling, the fault of the hydraulic coupling can be predicted in advance, and the probability of damage and accident expansion of the hydraulic coupling can be effectively reduced.

A fluid coupling for use with a reservoir of a water distribution system, such as a ganged reservoir system.

The utility model provides a mounting and dismounting device for a hydraulic coupler. The mounting and dismounting device for the hydraulic coupler comprises a connecting sleeve; the hydraulic driving structure comprises a hydraulic cylinder and a moving part, the hydraulic cylinder comprises a cylinder barrel, the first end of the connecting sleeve is connected with the first end of the cylinder barrel, and a first fixed connecting structure is arranged at the second end of the connecting sleeve; the ejector rod is connected with the moving part, the moving part can drive the ejector rod to do reciprocating rectilinear motion in the axial direction of the cylinder barrel, and a second fixed connecting structure is arranged at the second end of the ejector rod; the buffer mounting structure is mounted at the second end of the ejector rod and can slide relative to the ejector rod in the axial direction of the ejector rod, and the hardness of at least one side of the buffer mounting structure is smaller than that of the hydraulic coupler in the axial direction of the ejector rod. According to the technical scheme, the hydraulic puller can solve the problems that an existing hydraulic puller cannot be used for installing a coupler, a worker needs to use a copper rod to complete installation by means of external force striking, and equipment is extremely prone to being damaged.

A coupling member for a blind mate fluid coupling including a housing and a fluid connector configured to connect to a fluid conduit, the fluid connector being fixed in position relative to the housing. The coupling member further includes a valve body at least partially extending in the housing. The valve body can have an internal fluid passage that is fluidly connected to the fluid connector, wherein the valve body further has a spherical interface that interfaces with at least one of the housing or another coupling member for enabling angular misalignment between the coupling member and the another coupling member.

The invention relates to the technical field of speed regulation of high-rotating-speed and high-power hydraulic couplers, and particularly discloses a rotary drilling rig self-adaptive speed regulation system based on pressure feedback, which comprises an acquisition module for calculating slip frequency and acquiring an actual torque value of a power head based on the slip frequency; the adjusting module is used for adjusting an engine throttle, so that the oil supply pressure is within a stable pressure range, and the rotating speed of a power head reaches a target rotating speed; the feedback module is used for controlling the slip frequency to return to a preset safety range when the pressure returns to the stable pressure range and the shell temperature of the hydraulic coupler is not higher than a preset value; and when the pressure returns to the stable pressure range and the shell of the hydraulic coupler exceeds the preset value, the slip frequency is kept within the preset slip frequency range. The drilling steady state and reliability are improved, and the energy consumption and the operation risk are reduced.

Some fluid coupling devices described herein are configured as non-spill fluid couplings. In addition, some embodiments described in this document relate to fluid coupling devices and fluid coupling systems that are constructed in a compact configuration.

The utility model discloses a convex hydraulic coupler element and a hydraulic coupler. The convex hydraulic coupler element comprises a convex body, a supporting ring and a nozzle. The support ring is fastened longitudinally and radially to the convex body which is in contact with the support ring in a front longitudinal direction. The support ring and the convex body together define an inner housing. The nozzle includes a collar and a nose. A collar is mounted in the inner housing, movable in a direction radial to the longitudinal central axis. The nose extends from the support ring in a front longitudinal direction. The support ring is fixed to the convex body longitudinally and radially by welding. Therefore, the utility model provides a fixing structure which is fixed between the convex body and the support ring by welding, and can well adapt to some radial sizes and / or some materials of the convex body.